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annotate graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/OptimizedCallTarget.java @ 13915:d6b340b757a2

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Truffle: refactorings
author Andreas Woess <andreas.woess@jku.at>
date Sat, 08 Feb 2014 06:33:29 +0100
parents e86d32f4803f
children 1c9dbfc5b510
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.graal.truffle;
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24
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25 import static com.oracle.graal.truffle.TruffleCompilerOptions.*;
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26
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27 import java.io.*;
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28 import java.util.*;
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29 import java.util.concurrent.*;
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30
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31 import com.oracle.graal.api.code.*;
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32 import com.oracle.graal.debug.*;
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33 import com.oracle.truffle.api.*;
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34 import com.oracle.truffle.api.frame.*;
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35 import com.oracle.truffle.api.impl.*;
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36 import com.oracle.truffle.api.nodes.*;
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37
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38 /**
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39 * Call target that is optimized by Graal upon surpassing a specific invocation threshold.
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40 */
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41 public final class OptimizedCallTarget extends DefaultCallTarget implements LoopCountReceiver, ReplaceObserver {
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42
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43 private static final PrintStream OUT = TTY.out().out();
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44
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45 private InstalledCode installedCode;
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46 private Future<InstalledCode> installedCodeTask;
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47 private final TruffleCompiler compiler;
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48 private final CompilationProfile compilationProfile;
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49 private final CompilationPolicy compilationPolicy;
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50 private final TruffleInlining inlining;
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51 private boolean compilationEnabled;
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52 private int callCount;
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53 private SpeculationLog speculationLog = new SpeculationLog();
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54
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55 OptimizedCallTarget(RootNode rootNode, TruffleCompiler compiler, int invokeCounter, int compilationThreshold, boolean compilationEnabled) {
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56 super(rootNode);
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57 this.compiler = compiler;
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58 this.compilationProfile = new CompilationProfile(compilationThreshold, invokeCounter, rootNode.toString());
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59
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60 if (TruffleUseTimeForCompilationDecision.getValue()) {
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61 compilationPolicy = new TimedCompilationPolicy();
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62 } else {
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63 compilationPolicy = new DefaultCompilationPolicy();
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64 }
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65 this.compilationEnabled = compilationEnabled;
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66
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67 if (TruffleCallTargetProfiling.getValue()) {
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68 registerCallTarget(this);
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69 }
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70 this.inlining = new TruffleInliningImpl();
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71
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72 }
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73
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74 @CompilerDirectives.SlowPath
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75 @Override
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76 public Object call(PackedFrame caller, Arguments args) {
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77 return callHelper(caller, args);
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78 }
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79
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80 private Object callHelper(PackedFrame caller, Arguments args) {
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81 if (installedCode != null && installedCode.isValid()) {
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82 reinstallCallMethodShortcut();
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83 }
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84 if (TruffleCallTargetProfiling.getValue()) {
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85 callCount++;
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86 }
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87 if (CompilerDirectives.injectBranchProbability(CompilerDirectives.FASTPATH_PROBABILITY, installedCode != null)) {
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88 try {
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89 return installedCode.execute(this, caller, args);
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90 } catch (InvalidInstalledCodeException ex) {
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91 return compiledCodeInvalidated(caller, args);
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92 }
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93 } else {
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94 return interpreterCall(caller, args);
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95 }
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96 }
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97
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98 private static void reinstallCallMethodShortcut() {
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99 if (TraceTruffleCompilation.getValue()) {
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100 OUT.println("[truffle] reinstall OptimizedCallTarget.call code with frame prolog shortcut.");
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101 }
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102 GraalTruffleRuntime.installOptimizedCallTargetCallMethod();
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103 }
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104
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105 public CompilationProfile getCompilationProfile() {
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106 return compilationProfile;
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107 }
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108
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109 private Object compiledCodeInvalidated(PackedFrame caller, Arguments args) {
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110 invalidate();
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111 return call(caller, args);
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112 }
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113
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114 private void invalidate() {
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115 InstalledCode m = this.installedCode;
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116 if (m != null) {
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117 CompilerAsserts.neverPartOfCompilation();
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118 installedCode = null;
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119 compilationProfile.reportInvalidated();
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120 if (TraceTruffleCompilation.getValue()) {
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121 OUT.printf("[truffle] invalidated %-48s %08x |InvalidationCount %2d |ReplaceCount %3d\n", getRootNode(), getRootNode().hashCode(), compilationProfile.getInvalidationCount(),
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122 compilationProfile.getNodeReplaceCount());
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123 }
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124 }
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125
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126 Future<InstalledCode> task = this.installedCodeTask;
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127 if (task != null) {
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128 task.cancel(true);
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129 this.installedCodeTask = null;
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130 compilationProfile.reportInvalidated();
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131 }
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132 }
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133
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134 private Object interpreterCall(PackedFrame caller, Arguments args) {
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135 CompilerAsserts.neverPartOfCompilation();
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136 compilationProfile.reportInterpreterCall();
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137 if (compilationEnabled && shouldCompile()) {
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138 if (isCompiling()) {
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139 return waitForCompilation(caller, args);
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140 }
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141 boolean inlined = shouldInline() && inline();
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142 if (!inlined) {
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143 compile();
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144 }
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145 }
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146 return executeHelper(caller, args);
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147 }
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148
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149 private boolean shouldCompile() {
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150 return compilationPolicy.shouldCompile(compilationProfile);
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151 }
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152
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153 private static boolean shouldInline() {
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154 return TruffleFunctionInlining.getValue();
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155 }
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156
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157 private boolean isCompiling() {
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158 if (installedCodeTask != null) {
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159 if (installedCodeTask.isCancelled()) {
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160 installedCodeTask = null;
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161 return false;
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162 }
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163 return true;
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164 }
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165 return false;
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166 }
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167
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168 public void compile() {
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169 this.installedCodeTask = compiler.compile(this);
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170 if (!TruffleBackgroundCompilation.getValue()) {
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diff changeset
171 installedCode = receiveInstalledCode();
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172 }
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173 }
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174
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175 private Object waitForCompilation(PackedFrame caller, Arguments args) {
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176 if (installedCodeTask.isDone()) {
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diff changeset
177 installedCode = receiveInstalledCode();
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178 }
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179 return executeHelper(caller, args);
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180 }
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181
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182 private InstalledCode receiveInstalledCode() {
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diff changeset
183 try {
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diff changeset
184 return installedCodeTask.get();
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185 } catch (InterruptedException | ExecutionException e) {
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diff changeset
186 compilationEnabled = false;
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187 OUT.printf("[truffle] opt failed %-48s %s\n", getRootNode(), e.getMessage());
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188 if (e.getCause() instanceof BailoutException) {
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diff changeset
189 // Bailout => move on.
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diff changeset
190 } else {
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diff changeset
191 if (TraceTruffleCompilationExceptions.getValue()) {
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diff changeset
192 e.printStackTrace(OUT);
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193 }
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194 if (TruffleCompilationExceptionsAreFatal.getValue()) {
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diff changeset
195 System.exit(-1);
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196 }
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197 }
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198 return null;
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diff changeset
199 }
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200 }
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201
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diff changeset
202 /**
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diff changeset
203 * Forces inlining whether or not function inlining is enabled.
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diff changeset
204 *
60142b15ed42 Truffle: fixed bug where invocation counter was decremented twice after inlining; cleanup of optimized call target and profile.
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diff changeset
205 * @return true if an inlining was performed
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diff changeset
206 */
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diff changeset
207 public boolean inline() {
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208 boolean result = inlining.performInlining(this);
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diff changeset
209 if (result) {
13703
03b42f0fb635 Truffle: extend inlining interface with custom reprofile counters.
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parents: 13208
diff changeset
210 compilationProfile.reportInliningPerformed(inlining);
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diff changeset
211 }
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diff changeset
212 return result;
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diff changeset
213 }
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parents:
diff changeset
214
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parents:
diff changeset
215 public Object executeHelper(PackedFrame caller, Arguments args) {
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diff changeset
216 VirtualFrame frame = createFrame(getRootNode().getFrameDescriptor(), caller, args);
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diff changeset
217 return getRootNode().execute(frame);
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parents:
diff changeset
218 }
0097fb11c16f Add basic version of Graal's Truffle runtime.
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parents:
diff changeset
219
11934
dca16d6f9d65 TruffleRuntime.createVirtualFrame.
Chris Seaton <chris.seaton@oracle.com>
parents: 11722
diff changeset
220 protected static FrameWithoutBoxing createFrame(FrameDescriptor descriptor, PackedFrame caller, Arguments args) {
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0097fb11c16f Add basic version of Graal's Truffle runtime.
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parents:
diff changeset
221 return new FrameWithoutBoxing(descriptor, caller, args);
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diff changeset
222 }
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parents:
diff changeset
223
0097fb11c16f Add basic version of Graal's Truffle runtime.
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parents:
diff changeset
224 @Override
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diff changeset
225 public void reportLoopCount(int count) {
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d2d0c44662bb Truffle: refactored CompilationProfile to separate the profile and the policy in separate classes.
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diff changeset
226 compilationProfile.reportLoopCount(count);
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diff changeset
227 }
0097fb11c16f Add basic version of Graal's Truffle runtime.
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diff changeset
228
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diff changeset
229 @Override
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diff changeset
230 public void nodeReplaced() {
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diff changeset
231 compilationProfile.reportNodeReplaced();
12591
33fe56e68abd Simplifications of OptimizedCallTarget.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 12405
diff changeset
232 invalidate();
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diff changeset
233 }
10752
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diff changeset
234
13915
d6b340b757a2 Truffle: refactorings
Andreas Woess <andreas.woess@jku.at>
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diff changeset
235 public SpeculationLog getSpeculationLog() {
d6b340b757a2 Truffle: refactorings
Andreas Woess <andreas.woess@jku.at>
parents: 13851
diff changeset
236 return speculationLog;
d6b340b757a2 Truffle: refactorings
Andreas Woess <andreas.woess@jku.at>
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diff changeset
237 }
d6b340b757a2 Truffle: refactorings
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diff changeset
238
10752
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diff changeset
239 private static void printProfiling() {
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Andreas Woess <andreas.woess@jku.at>
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diff changeset
240 List<OptimizedCallTarget> sortedCallTargets = new ArrayList<>(OptimizedCallTarget.callTargets.keySet());
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diff changeset
241 Collections.sort(sortedCallTargets, new Comparator<OptimizedCallTarget>() {
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diff changeset
242
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diff changeset
243 @Override
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diff changeset
244 public int compare(OptimizedCallTarget o1, OptimizedCallTarget o2) {
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diff changeset
245 return o2.callCount - o1.callCount;
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diff changeset
246 }
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Andreas Woess <andreas.woess@jku.at>
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diff changeset
247 });
e2f5ae9afdc5 Truffle: introduce profiling option
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diff changeset
248
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diff changeset
249 int totalCallCount = 0;
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Andreas Woess <andreas.woess@jku.at>
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diff changeset
250 int totalInlinedCallSiteCount = 0;
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Andreas Woess <andreas.woess@jku.at>
parents: 10751
diff changeset
251 int totalNotInlinedCallSiteCount = 0;
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Andreas Woess <andreas.woess@jku.at>
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diff changeset
252 int totalNodeCount = 0;
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253 int totalInvalidationCount = 0;
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254
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255 OUT.println();
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256 OUT.printf("%-50s | %-10s | %s / %s | %s | %s\n", "Call Target", "Call Count", "Calls Sites Inlined", "Not Inlined", "Node Count", "Inv");
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257 for (OptimizedCallTarget callTarget : sortedCallTargets) {
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258 if (callTarget.callCount == 0) {
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259 continue;
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260 }
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261
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e86d32f4803f Truffle: Implement cache for truffle inlining heuristic.
Christian Humer <christian.humer@gmail.com>
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262 int notInlinedCallSiteCount = TruffleInliningImpl.getInlinableCallSites(callTarget, callTarget).size();
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641f22b1c6b8 Truffle: further fixes to the new CallNode.
Christian Humer <christian.humer@gmail.com>
parents: 13806
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263 int nodeCount = NodeUtil.countNodes(callTarget.getRootNode(), null, true);
13806
0a20f43a4a78 Merge fixes.
Christian Humer <christian.humer@gmail.com>
parents: 13805
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264 int inlinedCallSiteCount = countInlinedNodes(callTarget.getRootNode());
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33fe56e68abd Simplifications of OptimizedCallTarget.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 12405
diff changeset
265 String comment = callTarget.installedCode == null ? " int" : "";
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60142b15ed42 Truffle: fixed bug where invocation counter was decremented twice after inlining; cleanup of optimized call target and profile.
Christian Humer <christian.humer@gmail.com>
parents: 12709
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266 comment += callTarget.compilationEnabled ? "" : " fail";
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267 OUT.printf("%-50s | %10d | %15d | %15d | %10d | %3d%s\n", callTarget.getRootNode(), callTarget.callCount, inlinedCallSiteCount, notInlinedCallSiteCount, nodeCount,
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d2d0c44662bb Truffle: refactored CompilationProfile to separate the profile and the policy in separate classes.
Christian Humer <christian.humer@gmail.com>
parents: 12708
diff changeset
268 callTarget.getCompilationProfile().getInvalidationCount(), comment);
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269
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270 totalCallCount += callTarget.callCount;
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271 totalInlinedCallSiteCount += inlinedCallSiteCount;
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272 totalNotInlinedCallSiteCount += notInlinedCallSiteCount;
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273 totalNodeCount += nodeCount;
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Christian Humer <christian.humer@gmail.com>
parents: 12708
diff changeset
274 totalInvalidationCount += callTarget.getCompilationProfile().getInvalidationCount();
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275 }
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276 OUT.printf("%-50s | %10d | %15d | %15d | %10d | %3d\n", "Total", totalCallCount, totalInlinedCallSiteCount, totalNotInlinedCallSiteCount, totalNodeCount, totalInvalidationCount);
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277 }
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278
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Christian Humer <christian.humer@gmail.com>
parents: 13720
diff changeset
279 private static int countInlinedNodes(Node rootNode) {
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280 List<CallNode> callers = NodeUtil.findAllNodeInstances(rootNode, CallNode.class);
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diff changeset
281 int count = 0;
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diff changeset
282 for (CallNode callNode : callers) {
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parents: 13720
diff changeset
283 if (callNode.isInlined()) {
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diff changeset
284 count++;
13811
641f22b1c6b8 Truffle: further fixes to the new CallNode.
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parents: 13806
diff changeset
285 count += countInlinedNodes(callNode.getInlinedRoot());
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286 }
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diff changeset
287 }
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288 return count;
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289 }
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parents: 13720
diff changeset
290
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291 private static void registerCallTarget(OptimizedCallTarget callTarget) {
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292 callTargets.put(callTarget, 0);
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293 }
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294
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295 private static Map<OptimizedCallTarget, Integer> callTargets;
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diff changeset
296 static {
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3cf5f371dc9f Truffle: print inlined call target and rename profiling option.
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diff changeset
297 if (TruffleCallTargetProfiling.getValue()) {
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diff changeset
298 callTargets = new WeakHashMap<>();
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299
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300 Runtime.getRuntime().addShutdownHook(new Thread() {
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301
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diff changeset
302 @Override
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303 public void run() {
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diff changeset
304 printProfiling();
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305 }
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306 });
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307 }
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308 }
10484
0097fb11c16f Add basic version of Graal's Truffle runtime.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
309 }